Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue.
Canker sores, also called aphthous ulcers, are small, shallow lesions that develop on the soft tissues in your mouth and at the base of your gums.
Cardiomyopathy is a disease that weakens and enlarges your heart muscle. There are three main types of cardiomyopathy — dilated, hypertrophic and restrictive — all of which affect your heart muscle.
Carotid angioplasty is a procedure that opens clogged arteries to prevent or treat stroke. The carotid arteries are located on each side of your neck and are the main arteries supplying blood to your brain.
Carotid artery disease occurs when fatty deposits called plaques clog your carotid arteries. Your carotid arteries are a pair of blood vessels that deliver blood to your brain and head.
Although it might seem that carpal tunnel syndrome is a condition born from long hours spent working on a computer keyboard, carpal tunnel syndrome actually has numerous causes.
A cataract is a clouding of the normally clear lens of your eye. For people who have cataracts, seeing through cloudy lenses is a bit like looking through a frosty or fogged-up window.
Catatonic schizophrenia is one of several types of schizophrenia, a chronic mental illness in which reality is interpreted abnormally (psychosis). Catatonic schizophrenia includes extremes of behavior.
Cavities are decayed areas of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including not cleaning your teeth well, frequent snacking and sipping sugary drinks.
Most women have cellulite — fat that appears as dimpled skin on their thighs, hips and buttocks. Though not a serious medical condition, cellulite can be unsightly, and it may make you self-conscious when wearing shorts or a swimming suit.
Cellulitis is a common, potentially serious bacterial skin infection. Cellulitis appears as a swollen, red area of skin that feels hot and tender, and it may spread rapidly.
"Cerebral palsy" is a general term for a group of disorders that appear during the first few years of life and affect a child's ability to coordinate body movements. Cerebral palsy can cause muscles to be weak and floppy, or rigid and stiff.
Cervical cancer is one of the most common cancers that affect a woman's reproductive organs. Various strains of the human papillomavirus (HPV), a sexually transmitted infection, play a role in causing most cases of cervical cancer.
Chest pain can come on suddenly at any time. You try to ignore it at first, but your chest pain has you scared and worried. Could you be having a heart attack? Should you go to Hospital?
Chickenpox was once considered a rite of passage for most children, before the vaccine became available.
Chilblains is a painful inflammation of small blood vessels in your skin responding to sudden warming from cold temperatures. Also known as pernio, chilblains can cause itching, red patches, swelling and blistering on extremities, such as on your toes, fingers, ears and nose.
Childhood asthma has become more widespread in recent decades. As the most common chronic illness in children, childhood asthma causes more missed school and places more limits on activity than does any other disease.
Childhood obesity is a serious medical condition that affects children and adolescents. It occurs when a child is well above the normal weight for his or her age and height.
Chlamydia is a bacterial infection of the genital tract that spreads easily through sexual contact.
Cholera is a bacterial disease usually spread through contaminated water. Cholera causes severe diarrhea and dehydration. Left untreated, cholera can be fatal in a matter of hours.